Is there a picture we can see? There is no conclusive way to answer this question without looking at them. If they are twisted quite well and on purpose, then that seems a bit odd. If they are twisted just slightly on purpose, that makes sense in a way.
If they are just incidentally twisted, it probably will work out fine, given enough room for both trees to grow next to each other. If they are quite intertwined, they may have a tendency to strangle each other.
The purposeful twisting sometimes may be done to save space or for the trees to be exotic in look, and share space to produce different fruit simultaneously.
One word of caution though, if this is a big box retailer, at least some of the time, they are not necessarily knowledgeable and usually don't inspect the supplying nursery's inventory. Many local nurseries will directly bring their product and stack them on the shelves of big box stores like Home Depot, Lowe's, OSH etc.
Sometimes, the retailers employ knowledgeable gardeners they have trained (CA has one such program), but there are not that many of them, and usually even they are tasked with moving product. So many times, they don't really know what they are selling past a certain level. This is why dealing with exclusive retailers is helpful. They too source saplings, etc. from the same nurseries, but are more knowledgeable typically and will pay a lot more attention in helping you choose high quality saplings, give you advice on planting locations, soil amendments, fertilization, etc.